·2,447,543篇论文数据，部分数据来源于NoteExpress
The first was in the basin subsidence stage that was prior to the Caledonian movement. The second took place in the marginal sea deposition stage after the Caledonian movement.
区内下古生界烃源岩经历了两次成油过程，第一次发生在加里东运动前的盆地沉降阶段，第二次发生在加里东运动后晚古生代陆表海沉积阶段。
youdao
应用推荐
模块上移
模块下移
不移动